(57) A fluid-filled engine mount device (20) comprises first and second base plate members
(21, 22) which are connected to a power unit side and a vehicle body side, respectively;
a block (24) made of elastic material and interposed between the first and second
base plate members (21,22), the elastic block being formed with a cavity (23); a partition
plate member (26) having an orifice (25), located in the vicinity of and spaced from
the first base plate member (21) to define a fluid chamber (28) to be filled with
a fluid and an auxiliary chamber (30) which communicates with the fluid chamber through
the orifice; and an elastic support member (27) for connecting the partition plate
member (26) with the first base plate member (21 includes a secured section (27a)
secured to the first base plate member (21), and an annular section (27c) located
inside of the inner wall surface of the elastic block cavity (23) and inside of the
first base plate member (21) in the radial direction, and located between the secured
section (27a) and the partition plate member peripheral section, thereby effectively
preventing high frequency vibration from being transmitted to the vehicle body side,
achieving an effective damping of total vibrations applied to the engine mount.
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